Some Florida citrus processors, scientists, grower representatives and others recently started discussions about the feasibility of changing the legal standard of identity for orange juice (OJ). Under current U.S. Food and Drug Administration standards of identify for OJ, only sweet orange can be used in OJ products without limitation. Only 10 percent of juice from mandarins or citrus hybrids can …
Citrus Research and Field Trial Program Update
A multimillion-dollar federal program to establish thousands of acres of citrus research field trials in Florida has undergone significant changes in recent months. The Citrus Research and Development Foundation (CRDF) spent much time on May 21 hearing about new developments in the Citrus Research and Field Trial (CRAFT) program. CRDF Chief Operating Officer Rick Dantzler summarizes developments in the timing …
Grower Picks Favorites at Rootstock Trial
Gardinier Florida Citrus General Manager Lee Jones named two rootstocks that looked appealing at an April 25 Citrus Research and Development Foundation (CRDF) rootstock field day in Highlands County. “(US) 942 kind of stands out to me,” he said. “(US) 812 looks good,” he added. “What we’re learning as we’re going is we’ve got to spoon feed this (citrus trees) …
Florida Citrus Hall of Fame Inductees Chosen for 2019
Three distinguished leaders will be inducted into the Florida Citrus Hall of Fame at the 57th Citrus Celebration Luncheon at 11:30 a.m. on March 8 at Florida Southern College in Lakeland. Tim Hurner of Sebring, Richard J. Kinney (deceased), formerly of Lakeland, and Peter McClure of Port Saint Lucie will be honored at the luncheon. Hurner Tim Hurner is a fourth-generation Florida …
Increasing Yield Through High-Density Plantings
By Rhuanito Ferrarezi, Alan Wright and Arnold Schumann High-density plantings have been tested worldwide in advanced citrus production systems (ACPS) to increase efficiency of water, fertilizer and light, and to maximize yield per area. After the onset of huanglongbing (HLB) in Florida, canopy growth reduced drastically due to negative impacts on plant health, creating the need for new plant spacing …
Black Discusses HLB Research Meeting
Larry Black, president of Florida’s Citrus Research and Development Foundation (CRDF), attended a recent meeting in Fort Pierce to discuss HLB research prioritization and funding. He joined officials with other agencies that fund HLB, including California’s Citrus Research Board (CRB) and the U.S. Department of Agriculture (USDA). Black says the agencies met “to look at ways we can be more …
‘No Positive Response’ from Bactericides
Citrus Research and Development Foundation (CRDF) President Larry Black discusses grower trial results indicating bactericides used for HLB infection did not increase citrus yields. The results were presented by CRDF staff at a recent meeting of the organization. Black says numerous growers who were using bactericides for HLB volunteered to leave sections of their groves untreated. “CRDF staff went out …
Certis for Citrus Program Helps Fund Fight Against HLB
The biopesticide company, Certis USA, presented the non-profit Citrus Research and Development Foundation, Inc. (CRDF) with a check for $20,000 to help fund research projects in an effort to find a cure for huanglongbing (HLB; citrus greening). The presentation was made during the Florida Citrus Industry Annual Conference that took place at the Hyatt Regency Coconut Point Resort and Spa. …
Zinkicide Could Help Manage HLB
University of Florida Institute of Food and Agricultural Sciences researcher Evan Johnson reports that the product Zinkicide appears promising as a management tool for HLB. “Zinkicide is a zinc-based nanoparticle that is designed to become systemic inside the tree and has high bactericidal activity so that hopefully it can target Liberibacter,” Johnson says. Liberibacter is the causal agent of HLB. …
For Psyllids, Kaolin Clay Beats Foliar Insecticides
University of Florida Institute of Food and Agricultural Sciences researcher Christopher Vincent says kaolin clay outperforms foliar insecticides for management of HLB-spreading psyllids at times when kaolin’s use is practical. His presentation on the topic followed the Citrus Research and Development Foundation (CRDF) meeting on May 22 at the Citrus Research and Education Center in Lake Alfred. The presentation, part …
Committed to Clientele-Focused Leadership
By John Arthington Column sponsored by the Citrus Research and Development Foundation Hello. I want to take this opportunity to introduce myself and my new role at the Citrus Research and Development Foundation (CRDF). As many of you are aware, Harold Browning retired as chief operations officer (COO) to pursue other opportunities in private industry. At that time, Larry Black …
Call for Proposals Is Coming Soon!
Column sponsored by the Citrus Research and Development Foundation The mission of the Citrus Research and Development Foundation (CRDF) is to advance disease and production research and product development activities to ensure the survival and competitiveness of Florida’s citrus industry through innovation. Since the inception of CRDF, the majority of investment has focused on HLB, while still addressing strategic topics …
Single Breakthrough Discovery for HLB in Florida Unlikely
A single breakthrough discovery for managing citrus greening in Florida in the future is unlikely, says a new report by the National Academies of Sciences, Engineering, and Medicine. The committee that wrote the report called for a systems approach to prioritize research on the disease and strategically distribute resources for research to effectively manage the disease, which is the most …
Browning to Take New Role in HLB Battle
Citrus Research and Development Foundation Chief Operations Officer Harold Browning will resign at the end of March to pursue HLB control strategies for Premier Citrus ApZ, a branch of Vero Beach-based Premier Citrus. At his new position, Browning says he will work “on further testing and commercialization of strategies to control HLB in the field.” Specifically, Browning will work with …
Browning to Resign from Citrus Research and Development Foundation
Larry Black, president of the Citrus Research and Development Foundation (CRDF) board of directors, announced that Harold Browning is resigning as CRDF chief operations officer on March 31, 2018. Browning has served the CRDF and the citrus industry in this role since April 2011. “Harold has a unique skill set as a scientist, administrator and industry ambassador that has served the …
HLB Management, PGRs and Fruit Drop
Column sponsored by the Citrus Research and Development Foundation Plant growth regulators (PGRs) are chemicals that increase or decrease plant growth, flowering and/or fruit set. PGRs include some herbicides. This article summarizes research studies on how PGRs might aid in the management of HLB. Although several successful herbicide practices were developed by University of Florida Institute of Food and Agricultural …
Grower Input on HLB Research Needs
Lee Jones, general manager of Gardinier Florida Citrus, was one of several growers offering suggestions for upcoming HLB research at a recent Citrus Research and Development Foundation (CRDF) Research Management Committee session. He summarizes some of the suggestions he and others offered. Jones notes that several suggestions were made regarding bactericides, which growers got access to in spring 2016. He …
HLB Issues Below the Soil Surface Intrigue Growers
Several citrus growers and production managers offered input on future HLB research at a meeting on Feb. 15 at the Citrus Research and Education Center in Lake Alfred. The growers shared their thoughts with members of the Citrus Research and Development Foundation’s Research Management Committee (CRDF-RMC). David Howard, CRDF-RMC chairman, provides an overview of the approximately three-hour session called specifically …
Update on Thermotherapy Research
Column sponsored by the Citrus Research and Development Foundation As early as 1965, high-temperature treatments were shown to reduce HLB bacterial infection without killing the tree. Trials [Ehsani, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS)] using portable, semi-transparent, plastic houses were placed over trees, achieved temperatures of above 120 F for several hours over several days, and reduced …
Studying Soil Microbes and Microbial Amendments
Column sponsored by the Citrus Research and Development Foundation This article addresses the idea that beneficial, naturally occurring soil- and root-based bacteria might aid in the management of HLB. The background for field trials described below is work by Nian Wang of the University of Florida Institute of Food and Agricultural Sciences, funded in part by the Citrus Research and …